Got my plugs today. Cost £28 all in (including next day delivery).
Got a fright as I didn't realise the Golden Lodge 4 electrode plugs look like the electrodes have been burnt away already !!!
So I've replaced the NGK 3 electrode things I had in the car. They had about 10000 miles on them, still look good and could probably still be used...maybe.
I have one query though, the ceramic on the NGK's had turned a kinda rust colour just above the metal bitty, what causes this ???
It's not rust by the way.
Apart from this the plugs indicate that the engine is running efficently and is in good nick.